package com.lbw.facade;

/**
 * @author lbw
 * @version 1.0
 * @date 2021/6/6 13:55
 */
public class Projector {

    private final static Projector INSTANCE = new Projector();

    private Projector() {
    }

    public static Projector getInstance() {
        return INSTANCE;
    }
    public void on() {
        System.out.println("Projector on");
    }

    public void off() {
        System.out.println("Projector off");
    }

    public void focus() {
        System.out.println("Projector is Projector");
    }
}
